Extendable Sheet Discharge Tray for Variable Media Sizes
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Solution Overview
Problem
Existing medium discharge devices face issues with sheets protruding from the discharge placement part due to size changes, leading to potential sheet misalignment and falling.
Innovation Solution
A medium discharge device with a placement part that extends or contracts based on medium size, controlled by an extension and contraction change part, ensuring proper alignment and preventing sheet misalignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the sheet discharge placement part has a fixed size, then the device structure is simple, but sheets of different sizes will protrude and fall due to weight
Solution Approach 1:
The sheet discharge placement part is designed with dynamic extendability through an auxiliary tray that can be extended based on sheet size. The discharge placement part includes a base tray and an auxiliary tray that extends in the longitudinal direction when needed, allowing the placement surface length to adapt from A4 size to A3 size automatically without complex manual adjustment mechanisms.
2Ease of operation
If the auxiliary tray is extended manually by the user, then the placement surface length can be increased, but the user may forget to extend it or extend it to varying degrees
Solution Approach 1:
The system performs self-adjustment by automatically extending the auxiliary tray based on sheet size detection. The control unit receives sheet size information, determines the appropriate extension state, and drives the extension mechanism without requiring user intervention. This eliminates human error in extension and ensures consistent, reliable placement surface length for different sheet sizes.
3Adaptability or versatility
If the placement part is extended to accommodate larger sheets, then sheets of different sizes can be discharged properly, but the device occupies more space
Solution Approach 1:
The discharge placement part is segmented into a base tray and an auxiliary tray. The auxiliary tray is movable relative to the base tray along the longitudinal direction, allowing the placement surface area to be dynamically adjusted. When A4 sheets are discharged, only the base tray is used; when A3 sheets are discharged, the auxiliary tray extends to provide additional space. This segmentation enables compact storage when not needed while providing expanded capacity when required.
Data Source
AI summary
A medium discharge device includes a discharge part that discharges a medium, a placement part that has a placement surface on which the medium discharged from the discharge part is placed and that is extendable or contractable in a direction along the placement surface, and an extension and contraction change part that extends or contracts the placement part. The placement part includes a base tray and an auxiliary tray that is movable in an extension and contraction direction relative to the base tray. The extension and contraction change part is configured to extend or contract the placement part according to a size of the medium.